package com.example.sppmode.Common;

import android.content.Context;
import android.util.Base64;
import android.widget.Toast;


import com.example.sppmode.R;

import java.util.Calendar;
import java.util.Locale;

public class Utils {

    private static String covertByteArray2Str(byte[] bytes) {
        if (bytes == null)
            return null;

        return new String(Base64.encode(bytes, Base64.DEFAULT));
    }

    private static byte[] covertStr2ByteArray(String str) {
        if (str == null)
            return null;

        return Base64.decode(str, Base64.DEFAULT);
    }

    /**
     * @param value 初始化值
     * @param data  要计算的byte数组
     * @param start 起始位置
     * @param end   结束位置，包含end这个元素
     * @return crc16
     */
    public static int calcCrc16(int value, byte[] data, int start, int end) {
        if (data == null)
            return 0;

        int temp;
        for (int i = start; i < data.length && i <= end; i++) {
            value = ((value >> 8) | (value << 8)) & 0xffff;
            temp = (int) (data[i] & 0xff);
            value ^= (temp & 0xffff);
            value ^= ((value & 0x00ff) >> 4) & 0xffff;
            value ^= (value << 12) & 0xffff;
            value ^= ((value & 0xff) << 5) & 0xffff;
        }

        return value;
    }

    static final long[] crc_table = {
            0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
            0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
            0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
            0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
            0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
            0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
            0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
            0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
            0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
            0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
            0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
            0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
            0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
            0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
            0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
            0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
            0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
            0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
            0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
            0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
            0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
            0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
            0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
            0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
            0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
            0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
            0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
            0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
            0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
            0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
            0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
            0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
            0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
            0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
            0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
            0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
            0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
            0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
            0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
            0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
            0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
            0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
            0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
            0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
            0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
            0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
            0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
            0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
            0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
            0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
            0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
            0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
            0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
            0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
            0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
            0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
            0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
            0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
            0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
            0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
            0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
            0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
            0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
            0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D,
    };

    public static int calcCrc32(long crc, byte[] buf, int start, int len) {
        long c;
        int i = start;

        c = crc ^ 0xffffffff;

        while (i < len) {
            c = crc_table[(int) ((c ^ (long) (buf[i] & 0xff)) & 0xff)] ^ (c >> 8);
            i++;
        }

        return (int)(c ^ 0xffffffff);
    }


    public static String convertByteArray2HexStr(byte[] data, int dataLen) {
        StringBuilder buf = new StringBuilder(dataLen * 3);
        for (int i = 0; i < dataLen; i++) {
            buf.append(String.format("%02x ", data[i] & 0xff));
        }
        return buf.toString();
    }

    public static String convertFWVer2Str(byte[] ver) {
        if (ver == null || ver.length != 4)
            return "-.-.-.-";

        return String.format(Locale.getDefault(), "%d.%d.%d.%d", ver[0] & 0xff, ver[1] & 0xff, ver[2] & 0xff, ver[3] & 0xff);
    }


    public static String covertMillisecond2DateTimeStr(long ms) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(ms);
        return String.format(Locale.getDefault(), "%4d-%02d-%02d %02d:%02d %02d",
                calendar.get(Calendar.YEAR),
                calendar.get(Calendar.MONTH),
                calendar.get(Calendar.DAY_OF_MONTH),
                calendar.get(Calendar.HOUR_OF_DAY),
                calendar.get(Calendar.MINUTE),
                calendar.get(Calendar.SECOND));
    }

    public static byte[] convertInt2ByteArray(int data) {

        byte[] byteArray = new byte[4];
        int index = 0;
        byteArray[index++] = (byte) ((data >> 24) & 0xff);
        byteArray[index++] = (byte) ((data >> 16) & 0xff);
        byteArray[index++] = (byte) ((data >> 8) & 0xff);
        byteArray[index] = (byte) ((data) & 0xff);

        return byteArray;
    }

    public static int convertByteArray2Int(byte[] byteArray) {
        if (byteArray == null || byteArray.length < 4)
            return 0;

        int index = 0;
        int data = (int) ((byteArray[index++] & 0xff) << 24);
        data |= (int) ((byteArray[index++] & 0xff) << 16);
        data |= (int) ((byteArray[index++] & 0xff) << 8);
        data |= (int) ((byteArray[index] & 0xff));

        return data;
    }

    public static byte[] convertShort2ByteArray(short data) {

        byte[] byteArray = new byte[2];
        int index = 0;
        byteArray[index++] = (byte) ((data >> 8) & 0xff);
        byteArray[index] = (byte) ((data) & 0xff);

        return byteArray;
    }

    public static short convertByteArray2Short(byte[] byteArray) {
        if (byteArray == null || byteArray.length < 2)
            return 0;

        int index = 0;
        short data = (short) ((byteArray[index++] & 0xff) << 8);
        data |= (short) ((byteArray[index] & 0xff));

        return data;
    }

    public static byte[] convertIntArray2ByteArray(int[] intArray) {
        if (intArray == null || intArray.length == 0)
            return null;

        byte[] byteArray = new byte[intArray.length * 4];
        int index = 0;
        for (int j : intArray) {
            byteArray[index++] = (byte) ((j >> 24) & 0xff);
            byteArray[index++] = (byte) ((j >> 16) & 0xff);
            byteArray[index++] = (byte) ((j >> 8) & 0xff);
            byteArray[index++] = (byte) ((j) & 0xff);
        }

        return byteArray;
    }

    public static int[] convertByteArray2IntArray(byte[] byteArray) {
        if (byteArray == null || byteArray.length == 0 || byteArray.length % 4 != 0)
            return null;

        int[] intArray = new int[byteArray.length / 4];
        int index = 0;
        for (int i = 0; i < intArray.length; i++) {
            intArray[i] = (int) ((byteArray[index++] & 0xff) << 24);
            intArray[i] |= (int) ((byteArray[index++] & 0xff) << 16);
            intArray[i] |= (int) ((byteArray[index++] & 0xff) << 8);
            intArray[i] |= (int) ((byteArray[index++] & 0xff));
        }

        return intArray;
    }

    public static String convertByteArrayToString(byte[] bytes) {
        if (bytes == null)
            return null;

        return new String(Base64.encode(bytes, Base64.DEFAULT));
    }

    public static byte[] convertStringToByteArray(String string) {
        if (string == null)
            return null;

        return Base64.decode(string, Base64.DEFAULT);
    }

    public static String convertIntArrayToString(int[] intArray) {
        if (intArray == null)
            return null;

        byte[] byteArray = convertIntArray2ByteArray(intArray);
        return new String(Base64.encode(byteArray, Base64.DEFAULT));
    }

    public static int[] convertStringToIntArray(String string) {
        if (string == null)
            return null;

        byte[] byteArray = Utils.convertStringToByteArray(string);
        return Utils.convertByteArray2IntArray(byteArray);
    }

    public static String covertMillisecond2TimeStr(long ms) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(ms);
        return String.format(Locale.getDefault(), "%02d:%02d:%02d %03d",
                calendar.get(Calendar.HOUR_OF_DAY),
                calendar.get(Calendar.MINUTE),
                calendar.get(Calendar.SECOND),
                calendar.get(Calendar.MILLISECOND)
        );
    }

    public static void showCommandResult(Context context, int errCode, int earSide) {
        String strEarSide = (earSide == Constants.EARSIDE_LEFT) ? context.getString(R.string.earside_left) : context.getString(R.string.earside_right);

        if (errCode == 0) {
            String strPrompt = context.getString(R.string.set_successfully);
            Toast.makeText(context, strEarSide + " " + strPrompt, Toast.LENGTH_SHORT).show();
        } else {
            String strPrompt = context.getString(R.string.set_fail);
            String strErrCode = "errCode=" + String.format(Locale.getDefault(), "%02x", errCode);
            Toast.makeText(context, strEarSide + " " + strPrompt + ", " + strErrCode, Toast.LENGTH_SHORT).show();
        }
    }
}
